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astronomy
[ uh-stron-uh-mee ]
noun
- the science that deals with the material universe beyond the earth's atmosphere.
astronomy
/ əˈٰɒəɪ /
noun
- the scientific study of the individual celestial bodies (excluding the earth) and of the universe as a whole. Its various branches include astrometry, astrodynamics, cosmology, and astrophysics
astronomy
- The scientific study of the universe and the objects in it, including stars, planets, nebulae, and galaxies. Astronomy deals with the position, size, motion, composition, energy, and evolution of celestial objects. Astronomers analyze not only visible light but also radio waves, x-rays, and other ranges of radiation that come from sources outside the Earth's atmosphere.
Word History and Origins
Origin of astronomy1
Word History and Origins
Origin of astronomy1
Compare Meanings
How does astronomy compare to similar and commonly confused words? Explore the most common comparisons:
Example Sentences
As he puts it, centuries ago, we believed we were at the centre of the Universe and with each discovery in astronomy we have found ourselves "more displaced" from that point.
Price told Salon in a video interview that he enjoyed amateur astronomy as a child and plans to travel to a noted dark sky preserve in the Pennsylvania wilds.
As well as brightening the sky and interfering with astronomy through their flashes and radio waves, satellites pollute the atmosphere on launch and on re-entry, as research from last October underscored.
In late January, Columbia University issued a statement after a graduate student inserted information about the practice of astronomy in Palestine into a set of lab notes for an astronomy course.
Some of them believe that they may be on the verge of one of the biggest discoveries in astronomy for a generation - one that could force a fundamental rethink.
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